| Plastic which has been cooled
by sprues and runners is further cooled in the cavity and
filling occurs at high viscosity; consequently, plastic
in contact with the mold surface is pressurized in a semi-solidified
condition and stripes perpendicular to the flow direction
are formed on the surface of the molded product. |
- Lower the setting for injection
speed.
- Raise the injection pressure and hold pressure.
- Raise the temperature of the plastic and the die. |
